Adjustable truss.



No. 758,440; PATENTBD APR. 26, 1904. M. O'B. HALLOWELL. ADJUSTABLE THU-SS.

, APPLICATION FILED NOV. 17, 1903.

H0 MODEL. I

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WITNESSES INVENTOR f i 1% 0/3. WM

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UNITE STATES Patented April 26, 1 904.

PATENT OFFICE.

MAURICE OB. HALLOWELL, OF coNsHoHooKEN, PENNSYLVANIA,

ASSIGNOR TO J. ELLWOOD LEE COMPANY, OF ooNsHoHocKEN, PENNSYLVANIA, A CORPORATION or PENNSYLVANIA.

"ADJUSTABLE TRUSS.

SPECIFICATION formingpart of Letters Patent No. 758,440, dated April 26, 1904.

Application filed November 17, 1903. Serial No- 181,526- (No model.)

To all whom it may concern.-

Be it known that I, MAURICE OB. HALLO- WELL, a citizen of the United States of America, residing in Conshohocken, in the county of Montgomery, State of Pennsylvania, (having apost-oflice address at said Cons hohocken, Pennsylvania,) have invented an Improved Adjustable Truss, of which the following is a specification.

The object of this invention is to improve the construction of trusses so that-the pad may be readily and accurately adjusted with relation to the spring to cause the truss to fit the wearer comfortably and properly in any desired position.

In the accompanying drawings, Figure lis a back view of the pad and a portion of the spring of a truss. Fig. 2 is an edge view Fig. 3 is a sectional view with the pad removed. Fig. 4 is a view of the clamp detached, and Fig. 5 is a longitudinal central section. v

According to this invention I fasten to the spring S a socket s, in which I form a slot 0. A bifurcated plug P is adapted to be held in place in the socket s by a lateral screw 8, which passes freely through the slot 0 and is threaded into the bifurcation a and bears at its end against the bifurcation I), so that by turning this screw'the bifurcations will be spread apart to cause them to tightly grip the,

interior walls of the socket. The slot 0 is through a substantial half of the socket and allows the screw 8 and plug to be moved through a considerable angle for adjustment. The outer end of the plug P is flattened and provided with a toothed gripping-surface engaging a like surface on the end of a rod R,

a clamping-screw s being. employed to lock the two surfaces together in their adjusted positions.

The pad 12 is provided with a recess in its rear to receive the clamp C. A plate 13 carries on its under side the clamp and is itself secured to the pad by screws or otherwise.

The clamp C consists of a stationary plate 14, secured to the plate 13, and aplate 15, hinged to two depending lugs 6 6 from the stationary plate 14. A shouldered screw 7, passing freely through the cover-plate and stationary plate 5 14, is threaded into the hinged plate 15. Both stationary and hinged plates are provided with circular openings 00 w, on the edges of which the spherical end E of the rod R rests and against which spherical end they may be clamped by the screw 7. By these adjustinents the pad and rodR may be radially adjusted with relation to the plug and spring, the pad may be completely rotated on the ball E with relation to the rod, plug, andspring,

and the pad, rod, and plug may be partially rotated in the socket S, making an adjustment that can readily be made by an attendant or by the wearer to secure a comfortably-fitting truss and one at the same time adapted to ex- 5 ert pressure at the right spot and in the proper direction and usable on either the right or the left side of the wearer.

I claim as my invention 1. A truss, comprising a spring and a pad, 7

cess hinged on said lugs, a single screw passing through the cover-plate and taking into the free end of the hinged plate and a rod with a ball at its end fitted into said circular recesses, substantially as described.

2. A truss, having a spring and a pad, a 36 socket secured to the spring and slotted through part of its wall, a bifurcated plug, adapted to fit into said socket, a screw passing through the slit in the socket and threaded into one bifurcation, whereby the bifurcations 5 can be spread apart to clamp the plug in the socket, substantially as described.

3. A truss, comprising a pad, a clamp and a ball-ended rod adapted to be rotated com- In testimony whereof I have signed my pletely within said clamp, in combination with name to this specification in the presence of a slotted socket and spring, a bifurcated plug two subscribing witnesses.

fitting said socket and a screw to expand the MAURICE OB. HALLOWELL. plug in the socket, and a pivotal clamp con- Witnesses: necting the extremity of the plug and ball- A. W. CLARK, ended rod, substantially as described. J OHN L. W. MIFFLIN. 

